I just installed the latest release and then tried to add an English language module to Libreoffice. Doing so generated the following error.
error: failed to commit transaction (conflicting files)
libreoffice-en-GB: /usr/lib/libreoffice/share/wordbook/en-GB.dic exists in filesystem (owned by libreoffice)
libreoffice-en-GB: /usr/lib/libreoffice/share/wordbook/en-US.dic exists in filesystem (owned by libreoffice)
Errors occurred, no packages were upgraded.
warning: queue 0xdc19e0 destroyed while proxies still attached:
wl_display@1 still attached

Command finished with errors!

Any ideas please?

EDIT: I discovered adding the 'English dictionaries' option direct from the Libreoffice interface now activates the spellcheck.

The full sequence of events was I had no spellcheck available in Libreoffice and when I checked the settings no language modules were listed in the ‘available’ section which was blank. I then went to Octopi and selected to install the Libreoffice-en-GB languge module listed there which then generated the error I copied from the terminal.

This is all I can see in the log.

[2023-04-22T12:26:04-0300] [PACMAN] Running '/usr/bin/pacman -S --noconfirm apps/libreoffice-en-GB'
[2023-04-22T12:26:45-0300] [PACMAN] Running '/usr/bin/pacman -S --noconfirm apps/libreoffice-en-GB main/hunspell-en'
[2023-04-22T12:30:06-0300] [PACMAN] Running '/usr/bin/pacman -S --noconfirm apps/libreoffice-en-GB'
[2023-04-22T12:42:01-0300] [PACMAN] Running 'pacman -S libreoffice-en-GB 7.5.2.2-1'
[2023-04-22T12:42:18-0300] [PACMAN] Running 'pacman -S libreoffice-en-GB'

I then found I could install dictionaries direct from the Libreoffice options and did so for the entry listed there as ‘English dictionaries’ after which spellchecking was active. After that the entries in the writing aids - available language modules section now read:

Hunspell SpellChecker
Libhyphen hyphenator
MyThes Thesaurus

Incidentally no language modules are showing as being installed according to Octopi.